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69 results about "Semantic computing" patented technology

Semantic computing is a field of computing that combines elements of semantic analysis, natural language processing, data mining and related fields.

Intelligent review expert recommending method for science and technology projects

The invention provides an intelligent review expert recommending method for science and technology projects. The method includes the following steps that (1) the science and technology projects to be reviewed and expert information main texts are segmented into substring sequences, ICTCLAS segmentation of Chinese academy of sciences is carried out on the substring sequences, and stop word filtering is carried out on a segmentation result to obtain a term set; (2) a term network of project information is built, feature words are extracted on the basis of statistical characteristics and aggregation characteristics, and if expert information is relatively concise, the term set obtained in the step (1) directly serves as the feature words; (3) a knowledge representation model is built on the basis of fields and weights of the feature words, and a relative information index is built; (4) experts are recommended in groups to carry out feature merging operations between the fields and between the projects on the knowledge representation model; (5) similarity of the experts and the science and technology projects or groups to be viewed is calculated on the basis of semantics, threshold truncation is set, and a final recommended expert list is generated. By means of the method, the problems that recommending workload is large and review decisions lack scientificity are greatly alleviated.
Owner:HANGZHOU DIANZI UNIV

Computing method, search processing method, computing device and search processing device for sentence similarity

The invention provides a computing method, a search processing method, a computing device and a search processing device for sentence similarity realized through a computer. The computing method comprises the following steps: obtaining a first sentence and a second sentence; carrying out dependency analysis on the first sentence and the second sentence respectively to obtain a first dependency tree and a second dependency; computing the sentence similarity of the first sentence with the second sentence according to the first dependency tree and the second dependency tree. The search processing method comprises the following steps: receiving a query sentence; obtaining at least one search result item according to the query sentence; respectively computing the semantic similarity of the query sentence and the semantic similarity of the search result items through the computing method for sentence similarity realized through the computer; ordering the search result items according to the computed value of the semantic similarity; sending the search result items through ordering. More accurate sentence similarity can be computed according to the semanteme of sentences, and the search results are more accurate.
Owner:BAIDU ONLINE NETWORK TECH (BEIJIBG) CO LTD

Method for information recommendation in could environment based on data semantics

The invention relates to a method for information recommendation in a could environment based on data semantics. The method achieves the information recommendation through a basic data and user preference information semantization module, a could environment mass semantic information indexing module and a semantic calculation based information recommendation module to achieve the information recommendation, wherein the basic data and user preference information semantization module obtains basic data and user preference information through a cloud platform and conducts semantization description on the basic data and the user preference information to form a basic data and user preference information body library, the could environment mass semantic information indexing module establishes an indexing structure for semantic information and performs index division and regrouping when indexing nodes are overload, the semantic calculation based information recommendation module conducts semantic calculation on the basic data and user preference information body to obtain an information recommendation result. Compared with the prior art, the method for information recommendation in the could environment based on data semantics has the advantages of being good in real-timeliness, high in robustness and recommendation quality and the like.
Owner:TONGJI UNIV

Real-time interactive intelligent digital virtual character expression driving method and system

InactiveCN110211582APromote generationHave an emotional interactive experienceAnimationSpeech recognitionAnimationHuman–computer interaction
The invention discloses a real-time interactive intelligent digital virtual character expression driving method, and relates to the technical field of virtual character expression acquisition. The real-time interactive intelligent digital virtual character expression driving method comprises the following steps that S1, user speech information is collected, and the obtained speech information is outputted; S2, the obtained speech information is parsed to obtain text information corresponding to the speech information, the text information is subjected to semantic computation, and meanwhile a response is obtained; and S3, the obtained response is converted into speech, and the speech is converted into expression animation data in order to drive a virtual character to make a corresponding expression. The real-time interactive intelligent digital virtual character expression driving method has the beneficial effects that generation of expression animation is greatly simplified, the real-time interactive intelligent digital virtual character expression driving method can be widely applied to scenes such as intelligent speakers, intelligent robots, and chat robots so that the products are anthropomorphized, emotional interaction experience is achieved, and users can interact face to face with the virtual character.
Owner:量子动力(深圳)计算机科技有限公司

Intelligent retrieval method and device for calculating patent literature similarity based on word frequency and semantics, electronic equipment and storage medium thereof

The invention provides an intelligent retrieval method and device for calculating patent literature similarity based on word frequency and semanteme, electronic equipment and a storage medium of the electronic equipment. Bag-of-words statistics and word vector calculation are conducted on all literatures in a patent database, and corresponding bag-of-words data and word distance data are obtained;the method comprises the following steps: establishing a model, inputting contents or examination question numbers, acquiring titles, abstracts, claims and specifications of patents to be examined from question bank data and carrying out various combinations, performing rough selection and fine selection respectively according to a bag-of-words algorithm and a semantic algorithm, performing textsimilarity analysis on selected data, and performing fusion sorting on analysis results to obtain comprehensive similarity. Through duplicate checking and screening, a suspicious answer set of the to-be-checked patent is given. According to the method, the retrieval speed is increased, two rounds of screening are adopted, the first round of roughing aims at rapidly narrowing the comparison range,and the second round of fine selection aims at improving the accuracy; manpower and time can be effectively saved, a patent reviewer is helped to reduce the related patent review range, and review efficiency is improved.
Owner:北京知呱呱科技服务有限公司

Personalized multi-view federal recommendation system

The invention discloses a personalized multi-view federal recommendation system, which comprises a central server and a plurality of user clients, and any user client comprises a training module and a prediction module; wherein the training module comprises a data distribution sub-module, a gradient calculation sub-module, a gradient aggregation sub-module, a model updating sub-module, a model fine tuning sub-module, a user data warehouse and an article data warehouse which cooperate with one another to complete execution of a training algorithm, and a user sub-model and an article sub-model are obtained; and the prediction module comprises a semantic calculation sub-module, an interactive calculation sub-module, a probability aggregation sub-module, a probability sorting sub-module, a recommendation output sub-module, a user model warehouse and an article model warehouse which cooperate with one another to complete execution of a prediction algorithm and obtain a recommended article sequence corresponding to any user client. According to the method, the scene adaptability is higher, the feature mining of the underlying model is deeper, the data source covered by the original input is wider, and the localization fine tuning of the global model is better.
Owner:EAST CHINA NORMAL UNIV +1

Signal semantic recognition method based on multistage semantic representation and semantic calculation

The invention provides a semantic recognition method based on multistage semantic representation and semantic calculation, and mainly solves the problems of poor interpretability and low generalization ability of signal semantic recognition in the prior art. The implementation scheme of the method comprises the steps of collecting a training set and a test set; constructing a signal semantic recognition network composed of cascaded multistage semantic representation networks and semantic computing networks so as to carry out learnable multistage semantic representation on the signals, and computing semantic categories of the signals according to the semantic representation; setting a semantic representation loss function and a cross entropy loss function to train the multistage semantic representation network and the semantic computing network in sequence to obtain a trained signal semantic recognition network; and obtaining a semantic recognition result of the to-be-recognized signalbased on the trained signal semantic recognition network. According to the method, the interpretability and generalization ability of signal semantic recognition are effectively improved. The method can be used for man-machine interaction and semantic information retrieval.
Owner:XIDIAN UNIV

Travel intention prediction method based on double-attention graph embedded network

The invention particularly relates to a travel intention prediction method based on a double-attention graph embedded network. The travel intention prediction method comprises the following steps: establishing a travel intention prediction model; obtaining travel track data of the user and corresponding interest point sign-in data; the method comprises the following steps: firstly, aggregating travel trajectory data and interest point sign-in data through a travel intention prediction model to enhance activity semantics corresponding to a time-space situation, a starting point interest point situation and an end point interest point situation; embedding comprehensive activity semantics of the travel intention extracted in the advanced feature space based on the space-time situation, the starting point interest point situation and the terminal point interest point situation through the double attention graph; finally, the prediction probability of each candidate activity is calculated based on the comprehensive activity semantics of the travel intention; and taking the candidate activity with the highest prediction probability as the predicted travel intention of the user. According to the travel intention prediction method, personal sensitive information of the user does not need to be obtained, so that the privacy and practicability of travel intention prediction can be improved.
Owner:CHONGQING UNIV

Mapping method from WordNet to Neo4J, semantic detection method and semantic calculation expansion interface generation method

ActiveCN110263178AHigh speedRealize the upgradeability of the semantic detection functionSemantic analysisEnergy efficient computingSemantic computingSynonym
The invention discloses a mapping method from WordNet to Neo4J, a semantic detection method and a semantic calculation expansion interface generation method, and the method comprises the steps: extracting effective information of a synonym set, and mapping the effective information to synonym set nodes in the Neo4J; adopting a breadth-first algorithm to traverse each two synonym collection points associated with each other according to a specific relationship, and generating a connection between the corresponding Neo4J synonym collection points; traversing all words in the WordNet and the semantic element set corresponding to each word, and binding the words to the synonym set based on the semantic element set to form word nodes. According to the method, high-efficiency semantic calculation is realized by adopting the WordNet-based semantic relation network, the realization of semantic calculation floats to a Cyper language layer, the expression is more visual, the semantic calculation is visualized, the semantic calculation is mapped to a graph structure of Neo4j, and the data processing speed is higher. The optimization of the graph structure of the Neo4j enables the query in the implementation process of the semantic detection algorithm to be reduced from the spatial complexity On^n to O1.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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